Digger implement



May 28, 1940; 'r. HALGRIMSON I 2,202,450

DIGGER IMPLEMENT Filed Jan. 7, 1959 2 Sheets-Sheet 1' I I i Inventor 9' Z mafirzfiazjrt'fizsaw 'Atiqrneys V y 1940- T. HALGRIMSON 2,202,450

DIGGER IMPLEMENT Filed Jan. '7, 1939 2 Sheets-Sheet 2 z; n if a Inventor a f w A tibmeys v vide a simply constructed implement of the" end, as at ll, to the hand lever l4, said-link g in its preferred form, comprises a drag frame I 25 extending at right angles from the front 30 Patent d Ma ra, 1940 i I r 2,202,450

' {UNITED STAT-as PA-rem orr es I 2.2.2.450 I f miiffiftfiifiitfll m... Application January "i, 1939, Serial No. 240,801 1 Claim. or 55-104 My invention relates to improvements in fast'thereon an upstanding hand lever l4. 'A ground working implements, and more particulink I! is loosely pivoted at one end. asat l-l. larly to so-called quack" diggers. to the crankarm for universal'swingingtheree The principal object-of the invention is to proof and similarly pivoted adjacent .its'opposite class above identified, which is'more emcient in havingupstandingtherefrom alongside said leverv J operation than those now of commerce and I4" an arcuate toothed' 'detent rack II. The hand. 1 -which is arrangedto deliver to one side and lever'l4 has slidably mounted'thereon, in the case for digging at different depthav i9, the'usual type of spring-pressed detent bolt Other and subordinate objects are also com- 20 for engagement. with-the rack I8 and operative 1 prehended by my invention, all of which, .-to- .to dlsengageysaid .rackzby means .Of the gether with the precise nature of my improvepivoted handgrlp 2! on theupperen'd' 'ofgsaid- 1 ment, will be readily understood when the suclever l'4-}'and a linkeonnection .22 "betweensaid ceedingdescription and claim are read with grip'andbolt; v 1

reference to. the drawings accompanying and As will'beseemibyadiustihgthe hand lever-=14 1g;

forming part of this specification. forwardly and.."rearwardly, the shaft 2 may be:

In said drawings: rocked to-adjust the depth of the tines-l0 in the Figure 1 is a view in top plan of a preferred ground,'-as desired, and said" lever, shaft and form of my improved implement. tines, 6 held in adjusted position by coaction Figure 2 is a view in section taken on .the .line of the detent bolt 2| with the rack l8; The

22 oi'l igure 1 looking in the direction indicated described runners 2, I and the front arched porby the arrows. tions 4 provide for holding the frame I to the Figure 3 is a view in top plan of a modified ground against skidding sidewise and the form of my improved implement, and diagonal arrangement of the shaft 8 and lines Figure 4 is a view inside elevation of one of Ill for throwing the diggings to the right hand the tines and the clip for attaching the same to side of the frame i. its rock shaft. In the modified form of the invention shown in Referring to the drawings by numerals, and Figure 3, the frame 23 has a straight front bar first to Figures 1 and 2, my improved implement, 24 and parallel right and left hand side bars formed f a in Piece Of angle iron bent bar. 24 and all formed in one piece of angle iron,.

upon itself to provide a pair of right and left the side bars 25 being supported by front and hand side mnners 2, and an intermediate S orte rear pairs of rollers 2i suitably mounted on said runner 3, together with a pair of arched front bars 25. Draft rods 21, pivoted, as at 2|, to the portions 4 connecting said runners 2 to the front bar 24 provide for coupling the implement intermediate runner 3. A double tree 5 i conto draft means. The front bar 24 has'extending Y Elected by a 1 Of Ciel/i8 and in ouplings e rearwardly and centrally therefrom a bearing to said front p rti ns; resp ct v ly. for attach-' bracket 29 functioning as a support for the front ment to a tractor or the like in any suitable ends of a pair of rearwardly diverging horizon- 40 manner. Apair of bearing brackets I upstandtally dis s d r k shafts. 3| jon aled at'their. ding from the runn rs 2. r sp tiv y. supp rt rear ends in bearing brackets ti on .jthe'si'de arock shaft. 8 extending diagonally across said bars 25. The rock shafts}. ha -fix :therve, frame I and inclining rearwardly: toward the .t'o, respectively, 'a plurality of trailingi-tinesfllj rlght hand runner 2. Die rock shaft 8 has clipped to the shafts m the same--.-manner as" v c pped t e e s at a plurality of t ai i sdescribed with reference to the preferred form' of 5 se t e l of the usual nv te spring etal the invention and of the same-type as described; 1

type spaced apart laterally and equidi n ly'in relative totsaid form; "Ifhetines Ii are spaced planes oblique to the axis of said shaft so as to apart laterally and equidistantly along the re f dispose the same parallel with the runners 2 lated shafts ll toextend rearwardly at arr-angle. and 3. Another pair of bearing brackets ii on tothe shafts so that all the tines are-parallelsaid runn r r p y, pp rt a tr n ver with the side bars 25. The means. for adjustingrockshaft l2 extending across the frame at a the tines ii, in this form 'of the invention, com right angle to the runners 2 and 3 and proprises a pair of transverse shaftsJIJournaled" r vided intermediate its ends with an upstanding end to end in the bracket 20. and side .bars2i,

crank arm it fast thereon. The shaft t has respectively. at right'angles to-the bars 2! and.

having a pair of crank arms 33 upstanding therefrom, each arm 33 being loosely connected by a link 34 with a hand lever 35 upstanding from one of the shafts 30, said links 34 carrying segments 36 for cooperation with detents represented at 31, all as described with reference to the preferred form of the invention.

In the described modified form of the invention, the V-shaped arrangement of the rock shafts 30 and tines 3| provides for throwing the diggings to both sides of the implement, and the shafts 30 may be independently adjusted through manipulation of the proper hand lever 35 so that the tines 3i thereon may be differently adjusted in the ground as desired.

The foregoing will, it is believed, suffice to impart a clear understanding of my invention without further explanation.

Manifestly, my invention as set forth, is susceptible of modification in other respects than described and right is herein reserved to such other modification as fall within the scope of the subioined claim.

What I claim is:

In a ground working implement of the class described. a bar-like frame having an open rear end, digger means on said frame comprising a rock shaft mounted on the frame to extend diagonally across the same, a plurality of convolute digger tines fixed to said shaft in laterally spaced relation for variable adjustment in the ground under rocking of said shaft, said tines trailing from the shaft in planes at oblique angles to the axis of the shaft, and means to rock said shaft including a second rock shaft journaied on said frame at a normal angle to the sides of the frame, a crank arm upstanding from said second shaft, a hand lever fixed to and upstanding from the first-mentioned rock shaft, a link pivotally connected adjacent opposite ends thereof to said arm and lever, respectively, a toothed detent segment upstanding from the link alongside said lever, and a detent bolt on said lever engageable with the teeth of said rack at will.

THEODORE HALGRIMSON. 

